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tonysan 10-22-2009 06:21 PM

Lichen removal
I have lichen and mold on my asphalt tile roof that is about 1000 sq ft.(roof is about 15 yrs old) What is the typical charge per sq ft for a cleaning service to remove this material.

violin 10-22-2009 07:02 PM

Go to web sites listed on the right side of this forum, e.g.,

I think copper powder or Cu salts will stop moss growth.

tonysan 10-27-2009 11:45 AM


Thanks for the tip. I'll give it a try.

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